

Tel: 01772 793789
Mob: 07977 516258
JFJ Locksmith service provides a comprehensive service and repair service dedicated to the area known as MPL’s that is multi-point-locking-mechanisms.
There is a certain amount of movement in the UPVC door section when the two extreme temperatures occur that can cause difficulty operation the MPL, (expansion and contraction.)
When either of the above occurs it often results in miss-alignment of the lock in relation to its keeps thus resulting in a battle of wills between the householder and the door, often resulting in what is termed as a failed mechanism.
A classic case of a failed mechanism you will find the handle spinning freely 360 degrees without operating the lock.
The above is just one of a few reasons these doors have problems in operating, others briefly would be;
Poor initial installation,
Unsuitable locks and furniture,
Forced or attempted forced entry,
It also is worth noting the brown as in wood grain UPVC doors are more susceptible to the perils of the failed mechanism this is due to the prolonged exposure to the sun and the fact the brown or wood grain absorbs the heat easier than white.